How to choose materials for facial filling? Many beauty seekers consult the use of hyaluronic acid or autologous fat particles for facial filling. What material is used is related to the filling position and filling amount. Autologous fat particles and hyaluronic acid have different textures. Hyaluronic acid is difficult to fill, and autologous fat particles are soft but have poor support. Clinically, we will choose hyaluronic acid with stronger support, such as forehead, temple, risorius, silkworm, nasolabial groove and decree pattern.